You cannot connect an Avalon CTS and an Avalon CL at the same time to the same fetal monitor.
Monitoring a multiple pregnancy using cableless transducers is supported by the Avalon CL system
Using a mixture of wired and cableless fetal transducers is not supported. You can use either wired
or cableless fetal transducers.
If you cannot get sufficient signal quality using Avalon CTS transducers, switch to wired
3 Basic Operation